DAS provides a global Real-time Monitoring page for you to view the real-time performance of all accessed database instances. If your business is in a big promotion or is experiencing a major change, you can use this feature to check the health of databases in real time.
Prerequisites
DAS has accessed the database instance and the access status is Accessed.
For more information about how to access a database instance, see
Monitoring metrics
The following figure shows the Real-time Monitoring Dashboard page. 
The Real-time Monitoring page of DAS displays the following metrics (MySQL databases are used as an example).
You can click Metric Description in the upper-right corner to view the description of metrics.
| Metric | Description |
|---|---|
| QPS | Specifies the number of SQL statements executed per second. |
| TPS | Specifies the number of write operations per second, including Insert, Delete, and Update. |
| Current Conn | Specifies the total connections of the database. |
| Active Conn | Specifies the active connections of the database. |
| Network In(KB) | Specifies the inbound traffic of the database per second. |
| Network Out(KB) | Specifies the outbound traffic of the database per second. |
| Buffer Hit Ratio(%) | Specifies the hit ratio for the InnoDB cache pool. |
Procedure
Log on to the DAS console.
In the left-side navigation pane, click Real-time Monitoring Dashboard.
The Real-time Monitoring page displays Real-time Monitoring data of all database instances in the Accessed state. The page will be automatically refreshed.